It's been over one week since the loop came to an end.
Having destroyed the Cauldrons, Ragna had finished his quest.
There was still unfinished business in his books.
To defeat his now-revived arch nemesis, Terumi.
Terumi abducts the Successor of the Azure, Noel, and forces the Master Unit, Amaterasu to appear in the human plane.
Hatred and vengeance awaken the Sword of the Godslayer, Kusanagi (μ -No.12-).
Ragna sacrifices his own flesh and blood to save Noel, but even that, Terumi predicted.
In a small window of opportunity, Terumi nullifies Takamagahara
It was all a part of their—
The NOL's highest commanding leader, the Imperator's will.
Later, Kokonoe restores Ragna's flesh...
...and he sets his course for the Federation's Hierarchical City: Ikaruga.
Little did he know, he would encounter the phantoms of time, the Chrono Phantasma, at his destination.